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12674867850 = 23145253
BaseRepresentation
bin10111100110111101…
…10010001010001010
31012201100000000000000
423303132302022022
5201424231232400
65453414223430
7626044412331
oct136336621212
935640000000
1012674867850
1154146a58a7
122558954b76
13126cc14808
148834d2d18
154e2b2b600
hex2f37b228a

12674867850 has 180 divisors, whose sum is σ = 36030102966. Its totient is φ = 3316191840.

The previous prime is 12674867827. The next prime is 12674867851. The reversal of 12674867850 is 5876847621.

It can be written as a sum of positive squares in 3 ways, for example, as 10565578521 + 2109289329 = 102789^2 + 45927^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (12674867851) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 239148424 + ... + 239148476.

Almost surely, 212674867850 is an apocalyptic number.

12674867850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12674867850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18015051483).

12674867850 is an abundant number, since it is smaller than the sum of its proper divisors (23355235116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12674867850 is an frugal number, since it uses more digits than its factorization.

12674867850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 12674867850 in words is "twelve billion, six hundred seventy-four million, eight hundred sixty-seven thousand, eight hundred fifty".